Some adjustments to toon material to make it more flexible
Ability to also disable specular
This commit is contained in:
Juan Linietsky
parent
f4c8c552f9
commit
e577c5b070
5 changed files with 34 additions and 17 deletions
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@ -796,6 +796,7 @@ ShaderCompilerGLES3::ShaderCompilerGLES3() {
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actions[VS::SHADER_SPATIAL].render_mode_defines["specular_blinn"] = "#define SPECULAR_BLINN\n";
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actions[VS::SHADER_SPATIAL].render_mode_defines["specular_phong"] = "#define SPECULAR_PHONG\n";
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actions[VS::SHADER_SPATIAL].render_mode_defines["specular_toon"] = "#define SPECULAR_TOON\n";
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actions[VS::SHADER_SPATIAL].render_mode_defines["specular_disabled"] = "#define SPECULAR_DISABLED\n";
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/* PARTICLES SHADER */
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@ -777,7 +777,7 @@ LIGHT_SHADER_CODE
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#elif defined(DIFFUSE_TOON)
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diffuse += smoothstep(-roughness,roughness,dot(N,L)) * light_color * diffuse_color;
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diffuse += smoothstep(-roughness,max(roughness,0.01),dot(N,L)) * light_color * diffuse_color;
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#elif defined(DIFFUSE_BURLEY)
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@ -817,23 +817,26 @@ LIGHT_SHADER_CODE
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vec3 H = normalize(V + L);
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float dotNH = max(dot(N,H), 0.0 );
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float intensity = pow( dotNH, (1.0-roughness) * 256.0);
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specular += light_color * intensity;
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specular += light_color * intensity * specular_blob_intensity;
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#elif defined(SPECULAR_PHONG)
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vec3 R = normalize(-reflect(L,N));
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float dotNV = max(0.0,dot(R,V));
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float intensity = pow( dotNV, (1.0-roughness) * 256.0);
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specular += light_color * intensity;
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specular += light_color * intensity * specular_blob_intensity;
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#elif defined(SPECULAR_TOON)
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vec3 R = normalize(-reflect(L,N));
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float dotNV = dot(R,V);
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float mid = 1.0-roughness;
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float intensity = smoothstep(mid-roughness*0.5,mid+roughness*0.5,dotNV);
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diffuse += light_color * intensity; //write to diffuse, as in toon shading you generally want no reflection
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mid*=mid;
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float intensity = smoothstep(mid-roughness*0.5,mid+roughness*0.5,dotNV) * mid;
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diffuse += light_color * intensity * specular_blob_intensity; //write to diffuse, as in toon shading you generally want no reflection
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#elif defined(SPECULAR_DISABLED)
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//none..
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#else
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// shlick+ggx as default
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@ -966,7 +969,7 @@ vec3 light_transmittance(float translucency,vec3 light_vec, vec3 normal, vec3 po
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}
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#endif
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void light_process_omni(int idx, vec3 vertex, vec3 eye_vec,vec3 normal,vec3 binormal, vec3 tangent, vec3 albedo, float roughness, float rim, float rim_tint, float clearcoat, float clearcoat_gloss,float anisotropy,inout vec3 diffuse_light, inout vec3 specular_light) {
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void light_process_omni(int idx, vec3 vertex, vec3 eye_vec,vec3 normal,vec3 binormal, vec3 tangent, vec3 albedo, float roughness, float rim, float rim_tint, float clearcoat, float clearcoat_gloss,float anisotropy,float p_blob_intensity,inout vec3 diffuse_light, inout vec3 specular_light) {
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vec3 light_rel_vec = omni_lights[idx].light_pos_inv_radius.xyz-vertex;
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float light_length = length( light_rel_vec );
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@ -1017,11 +1020,11 @@ void light_process_omni(int idx, vec3 vertex, vec3 eye_vec,vec3 normal,vec3 bino
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light_attenuation*=mix(omni_lights[idx].shadow_color_contact.rgb,vec3(1.0),shadow);
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}
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light_compute(normal,normalize(light_rel_vec),eye_vec,binormal,tangent,omni_lights[idx].light_color_energy.rgb*light_attenuation,albedo,omni_lights[idx].light_params.z,roughness,rim,rim_tint,clearcoat,clearcoat_gloss,anisotropy,diffuse_light,specular_light);
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light_compute(normal,normalize(light_rel_vec),eye_vec,binormal,tangent,omni_lights[idx].light_color_energy.rgb*light_attenuation,albedo,omni_lights[idx].light_params.z*p_blob_intensity,roughness,rim,rim_tint,clearcoat,clearcoat_gloss,anisotropy,diffuse_light,specular_light);
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}
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void light_process_spot(int idx, vec3 vertex, vec3 eye_vec, vec3 normal, vec3 binormal, vec3 tangent,vec3 albedo, float roughness, float rim,float rim_tint, float clearcoat, float clearcoat_gloss,float anisotropy, inout vec3 diffuse_light, inout vec3 specular_light) {
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void light_process_spot(int idx, vec3 vertex, vec3 eye_vec, vec3 normal, vec3 binormal, vec3 tangent,vec3 albedo, float roughness, float rim,float rim_tint, float clearcoat, float clearcoat_gloss,float anisotropy,float p_blob_intensity, inout vec3 diffuse_light, inout vec3 specular_light) {
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vec3 light_rel_vec = spot_lights[idx].light_pos_inv_radius.xyz-vertex;
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float light_length = length( light_rel_vec );
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@ -1050,7 +1053,7 @@ void light_process_spot(int idx, vec3 vertex, vec3 eye_vec, vec3 normal, vec3 bi
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light_attenuation*=mix(spot_lights[idx].shadow_color_contact.rgb,vec3(1.0),shadow);
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}
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light_compute(normal,normalize(light_rel_vec),eye_vec,binormal,tangent,spot_lights[idx].light_color_energy.rgb*light_attenuation,albedo,spot_lights[idx].light_params.z,roughness,rim,rim_tint,clearcoat,clearcoat_gloss,anisotropy,diffuse_light,specular_light);
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light_compute(normal,normalize(light_rel_vec),eye_vec,binormal,tangent,spot_lights[idx].light_color_energy.rgb*light_attenuation,albedo,spot_lights[idx].light_params.z*p_blob_intensity,roughness,rim,rim_tint,clearcoat,clearcoat_gloss,anisotropy,diffuse_light,specular_light);
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}
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@ -1509,6 +1512,11 @@ FRAGMENT_SHADER_CODE
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ambient_light*=ambient_energy;
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float specular_blob_intensity=1.0;
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#if defined(SPECULAR_TOON)
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specular_blob_intensity*=specular * 2.0;
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#endif
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#ifdef USE_LIGHT_DIRECTIONAL
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vec3 light_attenuation=vec3(1.0);
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@ -1648,7 +1656,7 @@ FRAGMENT_SHADER_CODE
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#endif //LIGHT_DIRECTIONAL_SHADOW
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light_compute(normal,-light_direction_attenuation.xyz,eye_vec,binormal,tangent,light_color_energy.rgb*light_attenuation,albedo,light_params.z,roughness,rim,rim_tint,clearcoat,clearcoat_gloss,anisotropy,diffuse_light,specular_light);
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light_compute(normal,-light_direction_attenuation.xyz,eye_vec,binormal,tangent,light_color_energy.rgb*light_attenuation,albedo,light_params.z*specular_blob_intensity,roughness,rim,rim_tint,clearcoat,clearcoat_gloss,anisotropy,diffuse_light,specular_light);
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#endif //#USE_LIGHT_DIRECTIONAL
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@ -1664,8 +1672,6 @@ FRAGMENT_SHADER_CODE
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highp vec4 reflection_accum = vec4(0.0,0.0,0.0,0.0);
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highp vec4 ambient_accum = vec4(0.0,0.0,0.0,0.0);
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for(int i=0;i<reflection_count;i++) {
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reflection_process(reflection_indices[i],vertex,normal,binormal,tangent,roughness,anisotropy,ambient_light,specular_light,reflection_accum,ambient_accum);
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}
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@ -1678,11 +1684,11 @@ FRAGMENT_SHADER_CODE
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}
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for(int i=0;i<omni_light_count;i++) {
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light_process_omni(omni_light_indices[i],vertex,eye_vec,normal,binormal,tangent,albedo,roughness,rim,rim_tint,clearcoat,clearcoat_gloss,anisotropy,diffuse_light,specular_light);
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light_process_omni(omni_light_indices[i],vertex,eye_vec,normal,binormal,tangent,albedo,roughness,rim,rim_tint,clearcoat,clearcoat_gloss,anisotropy,specular_blob_intensity,diffuse_light,specular_light);
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}
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for(int i=0;i<spot_light_count;i++) {
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light_process_spot(spot_light_indices[i],vertex,eye_vec,normal,binormal,tangent,albedo,roughness,rim,rim_tint,clearcoat,clearcoat_gloss,anisotropy,diffuse_light,specular_light);
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light_process_spot(spot_light_indices[i],vertex,eye_vec,normal,binormal,tangent,albedo,roughness,rim,rim_tint,clearcoat,clearcoat_gloss,anisotropy,specular_blob_intensity,diffuse_light,specular_light);
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}
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@ -1714,11 +1720,15 @@ FRAGMENT_SHADER_CODE
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diffuse_light=mix(diffuse_light,vec3(0.0),metallic);
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ambient_light=mix(ambient_light,vec3(0.0),metallic);
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{
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#if defined(DIFFUSE_TOON)
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//simplify for toon, as
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specular_light *= specular * metallic * albedo * 2.0;
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#else
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//brdf approximation (Lazarov 2013)
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float ndotv = clamp(dot(normal,eye_vec),0.0,1.0);
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//energy conservation
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vec3 dielectric = vec3(0.034) * specular * 2.0;
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//energy conservation
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vec3 f0 = mix(dielectric, albedo, metallic);
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const vec4 c0 = vec4(-1.0, -0.0275, -0.572, 0.022);
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const vec4 c1 = vec4( 1.0, 0.0425, 1.04, -0.04);
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@ -1727,6 +1737,8 @@ FRAGMENT_SHADER_CODE
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vec2 brdf = vec2( -1.04, 1.04 ) * a004 + r.zw;
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specular_light *= min(1.0,50.0 * f0.g) * brdf.y + brdf.x * f0;
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#endif
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}
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if (fog_color_enabled.a > 0.5) {
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@ -325,6 +325,7 @@ void SpatialMaterial::_update_shader() {
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case SPECULAR_BLINN: code += ",specular_blinn"; break;
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case SPECULAR_PHONG: code += ",specular_phong"; break;
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case SPECULAR_TOON: code += ",specular_toon"; break;
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case SPECULAR_DISABLED: code += ",specular_disabled"; break;
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}
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if (flags[FLAG_UNSHADED]) {
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@ -1458,7 +1459,7 @@ void SpatialMaterial::_bind_methods() {
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ADD_GROUP("Parameters", "params_");
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ADD_PROPERTY(PropertyInfo(Variant::INT, "params_diffuse_mode", PROPERTY_HINT_ENUM, "Lambert,Lambert Wrap,Oren Nayar,Burley,Toon"), "set_diffuse_mode", "get_diffuse_mode");
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ADD_PROPERTY(PropertyInfo(Variant::INT, "params_specular_mode", PROPERTY_HINT_ENUM, "SchlickGGX,Blinn,Phong,Toon"), "set_specular_mode", "get_specular_mode");
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ADD_PROPERTY(PropertyInfo(Variant::INT, "params_specular_mode", PROPERTY_HINT_ENUM, "SchlickGGX,Blinn,Phong,Toon,Disabled"), "set_specular_mode", "get_specular_mode");
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ADD_PROPERTY(PropertyInfo(Variant::INT, "params_blend_mode", PROPERTY_HINT_ENUM, "Mix,Add,Sub,Mul"), "set_blend_mode", "get_blend_mode");
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ADD_PROPERTY(PropertyInfo(Variant::INT, "params_cull_mode", PROPERTY_HINT_ENUM, "Back,Front,Disabled"), "set_cull_mode", "get_cull_mode");
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ADD_PROPERTY(PropertyInfo(Variant::INT, "params_depth_draw_mode", PROPERTY_HINT_ENUM, "Opaque Only,Always,Never,Opaque Pre-Pass"), "set_depth_draw_mode", "get_depth_draw_mode");
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@ -1621,6 +1622,7 @@ void SpatialMaterial::_bind_methods() {
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BIND_CONSTANT(SPECULAR_BLINN);
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BIND_CONSTANT(SPECULAR_PHONG);
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BIND_CONSTANT(SPECULAR_TOON);
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BIND_CONSTANT(SPECULAR_DISABLED);
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BIND_CONSTANT(BILLBOARD_DISABLED);
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BIND_CONSTANT(BILLBOARD_ENABLED);
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@ -179,6 +179,7 @@ public:
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SPECULAR_BLINN,
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SPECULAR_PHONG,
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SPECULAR_TOON,
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SPECULAR_DISABLED,
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};
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enum BillboardMode {
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@ -142,6 +142,7 @@ ShaderTypes::ShaderTypes() {
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shader_modes[VS::SHADER_SPATIAL].modes.insert("specular_blinn");
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shader_modes[VS::SHADER_SPATIAL].modes.insert("specular_phong");
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shader_modes[VS::SHADER_SPATIAL].modes.insert("specular_toon");
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shader_modes[VS::SHADER_SPATIAL].modes.insert("specular_disabled");
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shader_modes[VS::SHADER_SPATIAL].modes.insert("skip_vertex_transform");
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shader_modes[VS::SHADER_SPATIAL].modes.insert("world_vertex_coords");
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